asked 22.6k views
3 votes
A swimming pool is open for 71/2 hours during the day the pool keeps one lifeguard on duty at a time, and each lifeguards shift is 11/2 hours long

asked
User AndyL
by
8.6k points

1 Answer

4 votes
5 lifeguards are needed during the day
answered
User Sujay S Kumar
by
8.6k points
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